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	Wideband tunable laser sources with multiple gain elements
	ARBORE, MARK A.; HARB, CHARLES; KMETEC, JEFFREY D.
	2003-12-16
著作权人	JDS UNIPHASE CORPORATION
专利号	US6665320
国家	美国
文献子类	授权发明
其他题名	Wideband tunable laser sources with multiple gain elements
英文摘要	This invention provides a tunable laser in which a plurality of gain elements (e.g., semiconductor diodes) with a plurality of gain spectra are optically coupled to a splitting-combining means (e.g., a wavelength router or fiber-optic coupler) in parallel, and the splitting-combining means is in optical communication with a wavelength-selecting means (e.g., a diffraction grating optically coupled to a movable mirror). The tunable laser of the present invention further comprising an optical fiber, optically coupling the splitting-combining means to the wavelength-selecting means. The use of a plurality of distinct gain spectra greatly enhances the tuning range of the tunable laser in the present invention. Moreover, by employing a long optical fiber as a substantial portion of an external cavity, the axial-mode spacing in the laser cavity is so small that mode-hops are effectively inconsequential for practical purposes, thereby rendering the wavelength tuning to be effectively continuous in the tunable laser of the present invention. Additionally, the availability of a plurality of the gain spectra can be further exploited, so as to provide additional capabilities in wavelength selecting/tuning. As such, the present invention provides a versatile and robust tunable laser in a simple and low cost construction.
公开日期	2003-12-16
申请日期	2001-01-29
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/35386]
专题	半导体激光器专利数据库
作者单位	JDS UNIPHASE CORPORATION
推荐引用方式 GB/T 7714	ARBORE, MARK A.,HARB, CHARLES,KMETEC, JEFFREY D.. Wideband tunable laser sources with multiple gain elements. US6665320. 2003-12-16.

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